Inventor · disambiguated record
Qianjun Yan
Also filed as: YAN QIANJUN
12 granted patents·4 pending applications·47 citations·filing 2020–2024
86Inventor score
Top patents by PatentIndex Score
16 records- 0194US11187387B1Color-controllable LED luminescent lampHANGZHOU HANGKE OPTOELECTRONICS GROUP CO LTD·Filed 2020·Granted Nov 30, 2021·25 cites·12 claims
- 0292US11215326B2Filament lamp lighting module and manufacturing method thereofHANGZHOU HANGKE OPTOELECTRONICS GROUP CO LTD·Filed 2020·Granted Jan 4, 2022·11 cites·12 claims
- 0390US11662065B1Manufacturing method of LED filament and manufacturing method of bulbHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2022·Granted May 30, 2023·2 cites·20 claims
- 0490US11619357B1LED filament and bulbHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2022·Granted Apr 4, 2023·2 cites·11 claims
- 0580US11898727B2Line lampHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2022·Granted Feb 13, 2024·1 cites·20 claims
- 0680US11393966B2Omnidirectional LED light wire and packaging method thereof, light source and lampHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2020·Granted Jul 19, 2022·1 cites·20 claims
- 0771USD943786SLight bulbHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2020·Granted Feb 15, 2022·5 cites·1 claims
- 0861US12326247B2Light tubes, light fixtures, and light bodiesHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2024·Granted Jun 10, 2025·0 cites·6 claims
- 0959US2024379576A1Flexible filament splicing structuresHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2024·Application pending·0 cites
- 1050US11614221B2LampHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2021·Granted Mar 28, 2023·0 cites·19 claims
- 1145US2023046106A1LampHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2021·Application pending·0 cites
- 1240USD1036712SLightHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2022·Granted Jul 23, 2024·0 cites·1 claims
- 1338US2023175657A1LampHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2022·Application pending·0 cites
- 1436USD943788SLight bulbHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2020·Granted Feb 15, 2022·0 cites·1 claims
- 1536USD943787SLight bulbHANGZHOU HANGKE OPTOELECTRONICS CO LTD·Filed 2020·Granted Feb 15, 2022·0 cites·1 claims
- 1634US2022146057A1Lighting device and bulbHANGZHOU HANGKE OPTOELECTRONICS GROUP CO LTD·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →